I started out playing the trumpet and then switched to the Tuba. When I was in the 5th Grade, the band teacher came into the classroom and gave us all papers with 100 answers to see if we could hear well enough to say whether the notes she was playing on the piano were in tune or out of tune.
This was done to judge our ability to play an instrument of our choosing.

I was the only student who scored 100 out of 100. Perfect tonal hearing.

But of course, being the youngest out of 9, money was tight, and so was the available band instruments. Needless to say that is why I started on the trumpet.